Definition of Pg

2. Noun. (British US) Parental Guidance (qualifier used to rate motion pictures that may be viewed by minors at their parents' discretion) ¹

3. Noun. (chiefly UK) Paying guest. ¹

4. Noun. (basketball) Point guard. ¹

5. Noun. (slang) Paregoric. ¹

¹ Source: wiktionary.com

Medical Definition of Pg

1. Prostaglandin
Symbol for picogram.
Abbreviations, with numerical subscripts according to structure, often used for prostaglandins. Letters A, B, etc. Indicate the nature of the cyclopentane ring (substituents, double bonds, orientation); numerical subscripts indicate the number of double bonds in the alkyl chains.
(05 Mar 2000)

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